The Mars Airplane Live Event - Al Bowers on PRANDTL-M
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- เผยแพร่เมื่อ 27 ก.ย. 2024
- On October 16, 2015, students (from middle school to university levels), young professionals, and members of the public had an opportunity to participate in a live event where they learned about the possible first Mars airplane. During “The Mars Airplane Live Event”, keynote speaker and NASA Armstrong Chief Scientist Albion Bowers explained the inspiration for the PRANDTL-M (Preliminary Research AerodyNamic Design to Land on Mars) airplane. Mr. Bowers educated the audience on Mars and how PRANDTL-M may be the first airplane to glide through the Martin atmosphere. Mr. Bowers also explained the crucial role that NASA interns play in the development of PRANDTL-M.
The event was jointly hosted by AIAA, the AERO Institute, and NASA Armstrong Flight Research Center.
This is really cool!
rocket scientist cant operate cameras and microphones???
Science and technology do not transcend budgets.
Horten / Prandtl flying wings are World War II technology.
Up to date gliders have a maximum glide ratio of 1:50.
Horten flying wings only reached 1:30.
And this does not change by improving them by some percent,
renaming them and taking them to Mars !!!
Making the right flight model for birds is a pretty big deal.
What's your point?
The Hortens were working with 1940s technology, both for analysis/design (no CFD, etc.) and for construction. They built a handful of iterations on their concept, vs. how many sailplanes built on the traditional planform, over how many decades, to refine *that* concept? Still, the "Horten/Prandtl flying wing", as you call it, was extremely competitive with the best traditional planform sailplanes available at the time, as far as I know.
So, what? You think none of the improvements responsible for the delta between traditional planform sailplanes of that era, and today's equivalents, would apply to Prandtl wings? Why not?
Listen to the video again, you clearly didn't get it.
1) Modern gliders have glide ratios of 60 (Nimbus 4) ETA achieved 70:1. 2) Hortens reached more than 30 and you have to consider these guys had no computers, just pen and paper. So show a little respect. And last but not least. Horten and Prandtl are not connected. In fact, they never met or exchanged theories. Ludwig Prandtl's BSLD theory is cutting edge, and if anyone had the bollocks to actually deploy it, they would see considerable efficiency gains in flight. Our industry is stuck in its old ways and too conservative. Find me one man made creature that can fly for more than a 100 days without refueling... Heck, more than 24 hours without refueling.... BSLD is the way to go for efficiency. That is all Al Bowers is saying. Proverse yaw vs Adverse yaw.... Simple as that. Derived from nature. Birds use it all the time.....